Examine source code of DC Comic Heros

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "DC Comic Heros",
  "manifest_version": 2,
  "description": "DC's greatest heros: \nDonna Troy, Vibe, Power Girl, Big Barda, Swamp Thing, Black Lightning, Adam Strange, The Creeper, Steel, Vixen, Fire, Deadman, Animal Man, Cyborg, Orion, Wildcat, Booster Gold, Captain Atom, Mister Miracle, Blue Beetle, Metamorpho, Mr Terrific, Firestorm, The Elongated Man, Zatanna, Superman, Wonder Woman, Hawkman, Red Tornado, Aquaman, Green Lantern, Plastic Man, Martian Manhunter, Dr.Fate, The Flash, Batman, Green Arrow, Black Canary, Shazam and The Atom."
}